The text mentions that Shri Sai's Guru 'shaved my head (Mundila)' before asking for two paise. What is the spiritual or symbolic significance of this act as explained in Chapter 19?

The provided text from Chapter 19 does mention the act of Shri Sai's head being shaved, an event referred to as 'Mundila'. This happened just before his Guru asked him for the two paise. However, while the event is noted as part of the sequence of Shri Sai's discipleship, the source chunks from this chapter do not offer any explanation regarding its spiritual or symbolic significance. The narrative immediately proceeds to the Guru's request for Faith and Patience, leaving the meaning behind the head-shaving unaddressed within this specific account.